Hi there
I have a Cisco bridge 350 and it has one cool option, setting what each antenna is for actualy, is it for receiving or transmitting.
As I can see nstreme is working this with 2 cards on some cards, but is it possible that 2 Prism200mw cards work 'together' with one SSID so one will be for RX and other will be for TX only so I could put two antennas for beter results¿
Maybe it is stupid question, but I had to ask it since it is bothering me for long time.
But indeed you can configure RouterOS even without nstreme to use two atennas from one card (antenna-mode parameter) - one to receive and one to transmit. In a setup like that, you could put smaller antenna or smaller power to transmit (eg., to comply with regualtions), but higher-gain antenna (and maybe even with an amplifier) to receive.
Half or Full
So if one is tx and the other rx would that make it full duplex like a network card. And if so would that make traffic flow much better and also give you back all that wasted bandwidth so you would have much faster transfers?
At cisco.com I've readed that for Bridge 350 ONLY one at a time will work, so no full duplex, but I've asked to put 2 powerfull 200mw Prisms so we got theoreticaly betted signal 
.
Lastguru - I need this for my AP, so what you recomend, should I use pow.amp for receiving or for transmitting or both for 1 AP so I would have longer distances, actually I want my clients to have as cheapest hardware possible, so one 'cheap' PCI card and lets say 10dbi antenna for within 3-4km in radius, ofcourse with line of sight???
.Lastguru - I need this for my AP, so what you recomend, should I use pow.amp for receiving or for transmitting or both for 1 AP so I would have longer distances, actually I want my clients to have as cheapest hardware possible, so one 'cheap' PCI card and lets say 10dbi antenna for within 3-4km in radius, ofcourse with line of sight???
I mentioned power amps just in case :)
Anyway, all 802.11 wireless cards are always working in half-duplex mode - the standard says so. And also full-duplex would not work at all - it needs different frequencies as the medium (the air) it the same unlike Ethernet, which has separate wire pairs for tx and for rx.
Anyway, all 802.11 wireless cards are always working in half-duplex mode - the standard says so. And also full-duplex would not work at all - it needs different frequencies as the medium (the air) it the same unlike Ethernet, which has separate wire pairs for tx and for rx.
So you say that for example 2.4GHz channel 7 with 11mbit technology can handle only 11mbit and thats all, so if I for example make 2 links and make them use all 11mbit (transfer), if someone else 2 meters away from me tries that same thing in same freq, same equipment, aggregate of transfers will be 11mbit and NEVER more ???? :)
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